Tooth hypersensitivity is very common clinical presentation. Dentin hypersensitivity is characterized by a short, sharp pain arising from exposed dentin, typically in response to thermal, chemical, tactile or osmotic stimuli. Treatment for hypersensitive dentin involves occlusion of dentinal tubules or altering the pulpal sensory nerve. Nevertheless, during planning treatment not only treating dentine hypersensitivity but also etiological factors for dentine hypersensitivity should be taken into consideration. The aim of this review is to inform about the mechanism, etiology', prevalance and treatment of hypersensitivity
